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authorSteven Whitehouse <swhiteho@redhat.com>2008-01-30 10:34:04 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2008-03-31 05:40:26 -0400
commitda755fdb414470d6dce3df12ad188de9131cf96c (patch)
tree7081889e6fc13f4ffdf86f5e928a748af7a7adbc /fs/gfs2/lm.c
parentab0d756681c9502a2ab9e2e4ab3685bc0567f4ee (diff)
[GFS2] Remove lm.[ch] and distribute content
The functions in lm.c were just wrappers which were mostly only used in one other file. By moving the functions to the files where they are being used, they can be marked static and also this will usually result in them being inlined since they are often only used from one point in the code. A couple of really trivial functions have been inlined by hand into the function which called them as it makes the code clearer to do that. We also gain from one fewer function call in the glock lock and unlock paths. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/lm.c')
-rw-r--r--fs/gfs2/lm.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/fs/gfs2/lm.c b/fs/gfs2/lm.c
deleted file mode 100644
index cfcc39b86a53..000000000000
--- a/fs/gfs2/lm.c
+++ /dev/null
@@ -1,210 +0,0 @@
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#include <linux/slab.h>
11#include <linux/spinlock.h>
12#include <linux/completion.h>
13#include <linux/buffer_head.h>
14#include <linux/delay.h>
15#include <linux/gfs2_ondisk.h>
16#include <linux/lm_interface.h>
17
18#include "gfs2.h"
19#include "incore.h"
20#include "glock.h"
21#include "lm.h"
22#include "super.h"
23#include "util.h"
24
25/**
26 * gfs2_lm_mount - mount a locking protocol
27 * @sdp: the filesystem
28 * @args: mount arguements
29 * @silent: if 1, don't complain if the FS isn't a GFS2 fs
30 *
31 * Returns: errno
32 */
33
34int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
35{
36 char *proto = sdp->sd_proto_name;
37 char *table = sdp->sd_table_name;
38 int flags = 0;
39 int error;
40
41 if (sdp->sd_args.ar_spectator)
42 flags |= LM_MFLAG_SPECTATOR;
43
44 fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table);
45
46 error = gfs2_mount_lockproto(proto, table, sdp->sd_args.ar_hostdata,
47 gfs2_glock_cb, sdp,
48 GFS2_MIN_LVB_SIZE, flags,
49 &sdp->sd_lockstruct, &sdp->sd_kobj);
50 if (error) {
51 fs_info(sdp, "can't mount proto=%s, table=%s, hostdata=%s\n",
52 proto, table, sdp->sd_args.ar_hostdata);
53 goto out;
54 }
55
56 if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lockspace) ||
57 gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) ||
58 gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >=
59 GFS2_MIN_LVB_SIZE)) {
60 gfs2_unmount_lockproto(&sdp->sd_lockstruct);
61 goto out;
62 }
63
64 if (sdp->sd_args.ar_spectator)
65 snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", table);
66 else
67 snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table,
68 sdp->sd_lockstruct.ls_jid);
69
70 fs_info(sdp, "Joined cluster. Now mounting FS...\n");
71
72 if ((sdp->sd_lockstruct.ls_flags & LM_LSFLAG_LOCAL) &&
73 !sdp->sd_args.ar_ignore_local_fs) {
74 sdp->sd_args.ar_localflocks = 1;
75 sdp->sd_args.ar_localcaching = 1;
76 }
77
78out:
79 return error;
80}
81
82void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
83{
84 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
85 sdp->sd_lockstruct.ls_ops->lm_others_may_mount(
86 sdp->sd_lockstruct.ls_lockspace);
87}
88
89void gfs2_lm_unmount(struct gfs2_sbd *sdp)
90{
91 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
92 gfs2_unmount_lockproto(&sdp->sd_lockstruct);
93}
94
95int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
96{
97 va_list args;
98
99 if (test_and_set_bit(SDF_SHUTDOWN, &sdp->sd_flags))
100 return 0;
101
102 va_start(args, fmt);
103 vprintk(fmt, args);
104 va_end(args);
105
106 fs_err(sdp, "about to withdraw this file system\n");
107 BUG_ON(sdp->sd_args.ar_debug);
108
109 fs_err(sdp, "telling LM to withdraw\n");
110 gfs2_withdraw_lockproto(&sdp->sd_lockstruct);
111 fs_err(sdp, "withdrawn\n");
112 dump_stack();
113
114 return -1;
115}
116
117int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
118 void **lockp)
119{
120 int error = -EIO;
121 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
122 error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
123 sdp->sd_lockstruct.ls_lockspace, name, lockp);
124 return error;
125}
126
127void gfs2_lm_put_lock(struct gfs2_sbd *sdp, void *lock)
128{
129 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
130 sdp->sd_lockstruct.ls_ops->lm_put_lock(lock);
131}
132
133unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
134 unsigned int cur_state, unsigned int req_state,
135 unsigned int flags)
136{
137 int ret = 0;
138 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
139 ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
140 req_state, flags);
141 return ret;
142}
143
144unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
145 unsigned int cur_state)
146{
147 int ret = 0;
148 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
149 ret = sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
150 return ret;
151}
152
153void gfs2_lm_cancel(struct gfs2_sbd *sdp, void *lock)
154{
155 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
156 sdp->sd_lockstruct.ls_ops->lm_cancel(lock);
157}
158
159int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
160{
161 int error = -EIO;
162 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
163 error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
164 return error;
165}
166
167void gfs2_lm_unhold_lvb(struct gfs2_sbd *sdp, void *lock, char *lvb)
168{
169 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
170 sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(lock, lvb);
171}
172
173int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
174 struct file *file, struct file_lock *fl)
175{
176 int error = -EIO;
177 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
178 error = sdp->sd_lockstruct.ls_ops->lm_plock_get(
179 sdp->sd_lockstruct.ls_lockspace, name, file, fl);
180 return error;
181}
182
183int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
184 struct file *file, int cmd, struct file_lock *fl)
185{
186 int error = -EIO;
187 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
188 error = sdp->sd_lockstruct.ls_ops->lm_plock(
189 sdp->sd_lockstruct.ls_lockspace, name, file, cmd, fl);
190 return error;
191}
192
193int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
194 struct file *file, struct file_lock *fl)
195{
196 int error = -EIO;
197 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
198 error = sdp->sd_lockstruct.ls_ops->lm_punlock(
199 sdp->sd_lockstruct.ls_lockspace, name, file, fl);
200 return error;
201}
202
203void gfs2_lm_recovery_done(struct gfs2_sbd *sdp, unsigned int jid,
204 unsigned int message)
205{
206 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
207 sdp->sd_lockstruct.ls_ops->lm_recovery_done(
208 sdp->sd_lockstruct.ls_lockspace, jid, message);
209}
210